Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

0 Answers  

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by what factor the starting current is used when comparing star and delta connection for motor starting?

0 Answers  

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What is the significance of 3.5 core cable ????

8 Answers   Intelux Electronics,

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We have 800KW motor operating at 6600Volt,50 Hz supply.During 1st startup it tripped on overcurrent trip.It's FLA is 88 Amps.The K factor of Thermal overloaaad was set on .94 initially.then we set at 0.97 and then it started fine.i dont understand why it tripped first?What are the protections which comes in picture during starting ?

6 Answers  

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what is the relation b/w KW and KWH? plz explain with example.

6 Answers   FAG,

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what's transient & sub- transient reactance means?

2 Answers  

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What is a Phase shift meter? Where can I get one?

0 Answers  

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WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .

0 Answers   Bhel,

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Why does capacitor block dc supply?

5 Answers   Bhel,

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Is it possible to import & export power through the same power transformer? what will be the vector group normally for both different or same?

1 Answers  

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its Kva and Kv are same?

3 Answers  

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what is difference between inductive and reactiveload?

5 Answers   ONGC,

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